Texas Instruments PCI7515ZHK

Overview

PCI7515ZHK from Texas Instruments is a multifunction PCI-to-CardBus/IEEE 1394/Smart Card controller IC supporting three independent PCI functions (Function 0: CardBus bridge, Function 2: OHCI 1394 host controller, Function 5: Smart Card interface) in a single 256-pin LQFP package. It operates at 33 MHz PCI clock, integrates an LDO voltage regulator, supports ACPI and PCI power management (D0–D3hot), and targets PC Card expansion systems requiring simultaneous legacy 16-bit card, FireWire, and secure smart card connectivity.

For engineers reviewing the PCI7515ZHK datasheet, PCI7515ZHK pinout, PCI7515ZHK application, or PCI7515ZHK equivalent, key selection considerations include multi-function integration level, PCI bus master capability per function, IEEE 1394 OHCI compliance, Smart Card ISO/IEC 7816-3 timing support, and CardBus socket register compatibility with ExCA v2.01.

Technical Context

The PCI7515ZHK implements three logically isolated PCI functions sharing a common PCI interface: Function 0 provides CardBus bridge functionality with 16-bit PC Card interface, ExCA register mapping, and integrated pull-up resistors; Function 2 implements full OHCI 1394 v1.1 host controller with PHY layer control, isochronous context management, and CSR register access; Function 5 delivers ISO/IEC 7816-3 compliant smart card interface with T=0/T=1 protocol support and dedicated clock generation.

Power management is implemented per-function via PCI PME-capable registers, with independent D-state control, Suspend Mode entry/exit coordination, and integrated LDO-VR for CardBus VCC supply. The device uses a 48-MHz crystal input for internal PLL generation of 1394 PHY clock and CardBus timing signals, and supports serialized IRQSER and parallel PCI interrupts.

Key Specifications

Pinout & Package

PCI7515ZHK is housed in a 256-pin Low-Profile Quad Flat Package (LQFP) with 0.5 mm pitch, 28 mm × 28 mm body size, and exposed thermal pad. Pinout follows TI's standard PCI7515 family layout with dedicated PCI bus signals (AD[31:0], C/BE[3:0]#, PAR, FRAME#, TRDY#, etc.), CardBus interface (CD1#, CD2#, VPP, VCC, OE#, WE#, etc.), 1394 PHY pins (TPA+, TPA−, TPB+, TPB−, etc.), Smart Card signals (CLK, I/O, RST, VCC, GND), and power/ground distribution across multiple banks.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar multifunction PCI controller applications.

Compared with PCI7510ZHK and PCI7520ZHK, the PCI7515ZHK uniquely balances triple-function integration, commercial-grade thermal performance (0°C to +70°C), and mature driver support across Windows XP–10 and Linux kernel 2.6+, making it optimal for cost-sensitive embedded PC Card systems where all three interfaces are concurrently required.

Availability

PCI7515ZHK is available at Aetrix Electronics and suitable for PC Card docking stations, FireWire audio capture interfaces, secure laptop smart card readers, and industrial fieldbus adapter modules requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for PCI7515ZHK includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, specializing in analog, embedded processing, and connectivity solutions for industrial, automotive, and communications markets.

The PCI7515ZHK belongs to TI's Connectivity Solutions product line, designed specifically to consolidate PCI-based peripheral expansion functions-CardBus, IEEE 1394, and Smart Card-into single-package solutions for space-constrained embedded computing platforms.

FAQ

What is the primary function of the PCI7515ZHK?

The PCI7515ZHK is a multifunction PCI controller IC integrating three independent PCI functions: Function 0 (CardBus bridge), Function 2 (OHCI 1394 host controller), and Function 5 (ISO/IEC 7816-3 Smart Card interface). It enables simultaneous PC Card expansion, FireWire connectivity, and secure smart card access through a single PCI slot. This triple-function integration is the defining capability of the PCI7515ZHK.

Does the PCI7515ZHK support PCI Express?

No, the PCI7515ZHK supports only conventional 33 MHz, 32-bit PCI 2.2 bus interface-not PCI Express. Its PCI interface is strictly compliant with PCI Local Bus Specification Rev 2.2, including bus mastering, configuration space access, and power management (PME) signaling. The PCI7515ZHK does not implement PCIe root complex, endpoint, or link training logic.

What clock frequency does the PCI7515ZHK require for proper operation?

The PCI7515ZHK requires a 48 MHz crystal oscillator connected to its X1/X2 pins. This 48 MHz reference feeds an internal PLL that generates the 33 MHz PCI clock, 49.152 MHz 1394 PHY clock, and CardBus timing signals. Using any other crystal frequency-such as 24 MHz or 100 MHz-will cause functional failure in OHCI 1394 and CardBus subsystems of the PCI7515ZHK.

Is the PCI7515ZHK pin-compatible with the PCI7510ZHK?

Yes, the PCI7515ZHK and PCI7510ZHK share identical 256-pin LQFP mechanical footprint and core PCI signal mapping. However, PCI7515ZHK exposes additional Smart Card interface pins (CLK_SC, I/O_SC, RST_SC, VCC_SC) and corresponding power/ground connections not used in PCI7510ZHK. PCBs designed for PCI7515ZHK can accommodate PCI7510ZHK, but not vice versa without redesign.

What operating temperature range is specified for the PCI7515ZHK?

The PCI7515ZHK is rated for commercial temperature operation from 0°C to +70°C ambient. This range is documented in Section 12.2 ("Recommended Operating Conditions") of the SCPS087 data manual. It is not qualified for extended industrial (−40°C to +85°C) or automotive temperature grades; for those requirements, TI recommends the PCI7520ZHK variant instead of the PCI7515ZHK.